How do you get baby to sleep the whole night

Sometimes they just dont. My 4 month old gets up 3 times still.

Mine didn't start till 6 or 7 months

🤷🏽‍♀️🤷🏽‍♀️ I wish I knew too lol

My started sleeping through the night at 9 months

They do it when they are ready but being consistent and make sure they arent hungry before they go down can help